"Clearly this is a reaction from corporate jet flyers," Mjets executive chairman Jaiyavat Navaraj told the Bangkok Post on Thursday.

The outlook for private flight resumption remains mired in uncertainty due to the political situation, he said.

Private jet traffic through Bangkok has weakened since anti-government protests began to gather strength about two months ago before reaching a peak this week just ahead of the planned shut down of Bangkok by the People's Democratic Reform Committee (PDRC).

Flyers have expressed concerned that Bangkok's Suvarnabhumi and Don Mueang airports could both be closed by PDRC protesters, although PDRC secretary-general Suthep Thaugsuban has ruled out such a move in recent days, said Mr Jaiyavat.

He said there are fears about widespread disruptions on major Bangkok roads as well as violence as the PDRC ratchets up the pressure on caretaker Prime Minister Yingluck Shinawatra to step down.